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Chapter Text

Miyabi floated on her back, staring up at the starry night sky. She had snuck into her school after hours to use the pool alone, or do anything to keep her away from her house for as long as possible. It was pitch black all around her. 

A meteor streaked across the sky before exploding with a loud bang over her city. She mindlessly watched the falling debris burn up in the atmosphere. She heard a plop, like a stone had fallen into the water. 

Might be nice to find a piece of meteorite, she thought idly. 

Her attention soon drifted back to nowhere. 

She felt something brush against her leg and jerked her body backwards in the water, paddling furiously as she looked around, but she couldn't see anything. It was probably her imagination, but she felt too creeped out to stay in the pool any longer and climbed out. 

Miyabi headed into her changing rooms and turned on the light switch. As she did, she saw it.

A bright red, pulsing phallic object, almost like a tentacle or slug, clung to her navy blue school swimsuit. 

“Kyaaaaa!" 

Miyabi screamed and swung her arms at the mysterious lump. The creature scurried out of the way towards her leg. As she tried to grab it, tentacles shot out of the creature and tied her arms to the upper frame of a bathroom stall. She thrashed futilely and looked on in horror at the mirror on the wall, directly across from her and giving her a full view of everything going on.

The creature had sprouted several tentacles several times its original mass, and pulled her legs apart as she struggled. A tentacle yanked the crotch of her swimsuit out of the way to expose her vagina. 

Sheer freezing terror crept up her spine.

"No way, no,” Miyabi whimpered half in denial. 

The slug-like creature pulled itself closer to her crotch and tiny feelers sprouted out of it to caress her lower lips. 

Miyabi shrieked and screamed but was suddenly cut off by a tentacle that had crawled up behind her and wrapped itself around her throat. The large glistening appendage hovered in front of her face as if staring at her then dove straight into her mouth. It thrashed around the inside of her mouth a few times, battling with her tongue, before pushing its way down her throat. A wet and sticky mucus coated her insides. She tried to scream again but only muffled sounds came out. The vile liquid disgusted her and made her gag. As she drank it, her body felt hotter and hotter and her nipples tingled. 

She watched in horror at the mirror as the main body of the slug pushed up against her vagina. It pulled back a bit, then rammed itself up inside her. Pain cut through her mind as her hymen was torn apart. The slug pulled out again before diving into her once more. Her stomach hurt from the impact. The creature pistoned in and out furiously, making her feel like her body was being torn apart. 

Slowly, somehow, the pain turned into pleasure. Her hips buckled as she unconsciously tried to give herself over to her master. 

The bitter and disgusting mucus that had repulsed her so much started to taste sweet.

Miyabi let out a low moan and couldn't believe herself. 

What the hell was she doing? 

It was her worst nightmare. 

But her body betrayed her. 

Her body buckled and swayed against the stall frame and the creature pumped itself more and more vigorously into her. Tiny tendrils wiggled into her ears, and a mysterious high clouded over her mind. As her body crept closer and closer to an orgasm, the slug crawled deeper into her until it knocked against her womb. 

Pain and pleasure ripped through her body and mind as the deepest parts of her were invaded, and she passed out. 

“Miyabi?" 

“Aaah!" Miyabi screamed and her head shot up from her desk. Her best friend Yua, who had been shaking her shoulder, stepped back in surprise. Miyabi scrambled backwards, turning her head furiously around, before realizing that she was in her classroom. She looked down at her body. Instead of being wrapped up in tentacles, she was wearing her usual plaid uniform. 

The other students in the class laughed at her shock, and even Yua giggled a bit. 

“Did you go sneaking around late at night again?" Yua whispered, a conspiratorial smile on her face. Her face looked really cute when framed by her shoulder-length yellow hair.

Miyabi vaguely nodded her head and brushed back her long messy black hair.

"You should try to get more rest, you know.” Yua sat down in her chair next to Miyabi’s and scooted over with her lunch box. 

"I should…" Miyabi muttered.

Was it all just a nightmare? It felt so real.

Miyabi sighed in relief and held a hand to her chest to calm herself down. 

Inside her womb, the parasite clung to her walls, slowly reworking her body. Her flesh was melted and recreated. Her immune system fought relentlessly against the pathogens spreading through her body. The parasite analyzed her nerve cells, observed her nervous system, and prepared to integrate itself. 

A few days later, Miyabi noticed something as she took a shower. On her navel, between her crotch and her belly button, was a faint pink pattern. The swirling lines almost seemed like a heart. When she ran her fingers over it, a streak of arousal shot up her spine. She closed her eyes and shivered. A moan escaped her lips as her body heated up. She shook her head to will it away, and continued washing the rest of her body. 

As she dried herself off and looked in the mirror, she thought that her breasts seemed swollen. She looked down at her chest and brought her hands up to cup her boobs. She wasn't sure if it was just wishful thinking, but she thought her breasts might've been a little bigger. 

Her nipples had puffed up and stuck out a lot more than before, and looked brighter and almost reddish. Her areolas were also more prominent.

Seeing her body’s slight changes turned her on and she got excited. She quickly changed and went back to her bedroom, then immediately locked the door. Straining her ears to check if any of her family were nearby, she climbed onto her bed and lay back with her legs spread. 

She threw off her shirt and squeezed her breasts. Pleasure ran over her like a tidal wave, in a way that her breasts had never given her before. She arched her back and moaned as she kept massaging and kneading them. Her fingers moved up to her nipples, and she squealed when she pinched them. They begged to be pulled, so she gripped each nipple between her thumb and index finger and yanked on them back and forth.

Her hips buckled and her vagina clenched itself open and close as the orgasm rocked through her body and milk shot out of her nipples. Miyabi was shocked at the sight, but somehow, instead of freaking out or stopping, her body seemed to automatically scoop up all the milk she could onto her fingers and pour it into her mouth. She stuck her hands into her mouth and licked and sucked on her fingers to get as much as she could. Her freshly made milk tasted sweet and sent little waves of pleasure up to her brain. 

More.

I want to drink more.

She collapsed back onto the bed, and quickly fell asleep from the exhaustion. That night, her dreams were filled with thoughts about breasts. Having breasts large enough that she could suck on her nipples directly. Breastfeeding her friend Yua. Tying Yua up with tentacles and forcibly milking her…

Her shirt was soaked with milk when she woke up. Mysteriously, so were her shorts. A sweet, cloying smell hung in the room, making her mind hazy and horny. 

Miyabi held her shirt up to her mouth, and idly sucked on it… until she saw that she had overslept her alarm. She sprung out of bed in a panic, and wiped the remnants of milk off of herself in the bathroom. She managed to force her boobs and puffy nipples - both of which seemed larger than the previous night - into her bra, but it was uncomfortably tight and her cleavage looked like it was bursting. She put on her uniform consisting of a sailor blouse, bow, and plaid skirt, then left her house. 

As she ran towards her school, a voice called out to her from behind. 

“Miyabi!" It was Yua. Yua ran up to her, then paused. 

Were Miyabi's boobs always this big?, thought Yua. She had felt that there was something off about her friend lately, but wasn't sure what. 

"Hey Yua.” Miyabi turned and smiled at her friend. 

Yua gulped. Somehow Miyabi's smile had a sexy and erotic undertone to it, and she felt like she was being pulled in. 

Miyabi's stomach growled.

“Hungry?" Yua giggled. 

“Very, I woke up late and didn't get to eat," Miyabi whined and clung onto Yua’s shoulder. A hazy thought crossed her mind. “Hey Yua… can I eat you?”

"Huh?!”

Miyabi eyed Yua's glistening neck. "Your sweat smells so tasty…" 

Unbeknownst to both of them, Miyabi’s scent and breath were releasing a lot of pheromones, and Yua's mind was unable to register anything wrong with Miyabi's words. 

Yua breathed heavily and pulled down her shirt collar. “Go… go ahead…" 

Miyabi pushed Yua against a wall on the street and lapped her long tongue up Yua's neck. She licked at all the sweat on Yua's chest and neck, then wrapped her lips around Yua's neck and sucked heavily. Yua gasped and stumbled, one leg pulling back behind the other. 

Miyabi immediately mounted her crotch onto Yua's thigh and humped her as she bit into Yua's neck. A small dose of the parasite pathogens inside her infected Yua as Miyabi ground her enlarged clit against Yua’s leg. Their breasts squished against each other. Miyabi hugged Yua tightly and moaned as she came, her pussy juices trickling down Yua's leg.

They panted and leaned against the wall. Passersby raised their eyebrows at the pair of girls hugging each other and leaning against a wall on a random street, but the girls themselves were too unfocused to care. Eventually they returned to themselves, and made their way to school. 

Neither of them had perceived that anything weird happened.

They drew a lot of attention from the other students during the day. Yua had a large love mark on her neck, and lots of people were speculating about her relationship with Miyabi. As for Miyabi, the combination of her body's changes and the pheromones that she unconsciously emitted made guys and girls alike turn their heads to stare at her. 

Miyabi had a hard time concentrating during her classes. Her mind kept flashing back to that morning, and how good Yua's sweat tasted. She wanted to bite and devour more of her. As she thought of how she had humped Yua's thigh with her crotch, her panties started to feel tight. Somehow her clit was straining against the fabric. Maybe it had expanded further. She slightly buckled her hips in her chair, hoping that no one else would notice, as she ground her clit against her own underwear. Her breath came out short and ragged as heat flowed through her body. Her tongue rolled out of the side of her mouth. 

Beside her, Yua kept glancing to see Miyabi's reactions, and she herself got turned on and blushed. 

As Miyabi panted out her hot breath, her pheromones slowly diffused through the classroom. Soon it was like a hot haze clung over everyone's minds as their bodies unconsciously reacted to the chemicals. Everyone was surprised and confused to find themselves aroused for no apparent reason. 

Feeling bolder and with her judgement clouded by how horny she was, Miyabi discreetly used her pen to poke and rub at her clit and vagina. She thrust her hips against the pen and brought herself to another orgasm, the waves crashing over her as she tried to stifle her moans.

She had no idea what any of her classes had been about. 

Around lunch time, her breasts felt wet and she realized that she was lactating again. She stood up in a hurry and ran out of the room, and Yua quickly followed after her.

“Miyabi!" 

Miyabi covered her boobs with her arms and turned to look at her friend. “What is it? I kind of need to go deal with something right now…" 

Yua's eyelids dropped down with sadness. “You've been acting weird lately. Is something troubling you?" 

“Well…" 

“I want to be able to help you." 

Miyabi rolled in her lips. She had no idea how to explain to Yua what was going on with her body when she herself had no idea either. And Yua might not even believe her, or be disgusted at her. 

But then her dreams from the previous night flashed up again. 

Dreams about breastfeeding Yua. 

Miyabi grabbed Yua's hand and pulled her towards the deserted emergency staircase at the back of the school that they often hung out at. When they were alone, they turned to face each other. 

"So uh, Yua.” Miyabi stammered. "I don't know why, but lately my body's been… getting weird… and it's giving me a lot of problems." 

Yua nodded carefully. “You seem different. What problems do you have? Can I help you with them?" 

Miyabi's heart jumped up to her throat. Maybe she really would get her desire. She turned her head to the side, tried to make herself look as embarrassed and vulnerable as she could, and held up shivering hands to her blouse. With trembling fingers, she detached her bow and undid the top buttons. She noticed Yua's eyes growing bigger and her cheeks turning red as she saw more and more of Miyabi's bursting cleavage. Feeling emboldened, Miyabi pulled her blouse to the side, unclasped her bra and pulled them down off her chest. 

Her large nipples strained against the bra for a bit before coming loose, causing her full breasts to bounce up and jiggle. Bits of milk sprayed into the air. 

The pheromones in her milk seeped into both of their minds. 

Yua gasped and stared at her nipples. 

“I've been lactating a lot," said Miyabi. “It gets everywhere, so… could you help me get rid of it?" She looked up at Yua with puppy eyes. 

Yua, as if in a trance, nodded and slowly bent down to Miyabi’s chest. She cupped her palms beneath Miyabi's breasts, feeling the hefty weight of them, and the milk sloshing around inside. She gave a light squeeze. Heat spread out through her body as her heartbeat skyrocketed. Miyabi's, her precious friend’s, beautiful boobs were right in front of her. The long puffy nipples were so alluring. She leaned in and sucked on one. The explosion of milk in her mouth delighted her and she felt hooked, furiously sucking for more. 

Miyabi's heart filled with joy as Yua sucked on her tit. The feeling of the warmth swirling inside her breasts being transferred over to her friend was incredible. The knowledge that her very own essence was being eaten and absorbed by her friend brought her to an indescribable high. She hugged Yua and wrapped an arm behind her head, pulling her in closer. They backed into the corner and leaned against the wall in a reverse of that morning’s position. Miyabi slowly slid herself down and guided Yua, until she was sitting comfortably in her corner and Yua was lying on her lap and suckling like a baby.

Miyabi felt pleasure and love float inside her as she warmly stroked Yua's hair. This was their little heaven. She wanted to be with Yua like this forever. Her right breast was still free and leaking milk, and she gently massaged it herself and brought the milk in her palm up to her lips. It was sweet and filling. 

The door to the emergency staircase opened and a boy walked in. Yua didn't stop sucking. She only turned to glare at the intruder who might take away her meal. 

Miyabi panicked, then realized it was Kei. Kei was a cute kouhai who often hung out with them as a group, and Miyabi was pretty sure that he had a crush on her. They were fond of Kei, but it was a shame that he was a boy. Kei would be so much better as a girl. 

Kei held his hands up to cover his face and looked through his fingers. “I'm sorry! I-I didn't mean to interrupt, I'll leave you two alone.”

Miyabi stared at Kei’s cute face. 

It really is such a shame that he’s a boy. He should be a girl. I would like him more if he was a girl, and he would be so cute too. 

I want to turn him into a girl. 

Maybe… maybe I can. 

If I make him drink enough of my milk, I could turn him into ‘her’. 

Miyabi didn't know where the thought came from, but she was oddly certain of it. 

She held up an inviting hand and smiled. “Come here, Kei. There's another spot for you." 

Kei’s heart went into overdrive. The beautiful senpai that he was in love with had just invited him to suck on her breast. A part of him was worried about the modesty and morality of the situation, but it was entirely killed off by the lust pheromones drifting in the air. 

Kei slowly lay down on Miyabi's lap and curled his body up into a pile, mirroring Yua. He gently held Miyabi's right breast. “Is it really okay?" 

“Of course. As a matter of fact, I need to get myself to stop lactating before class, so you would be helping me out." 

Kei gulped. “I love you, Miyabi-senpai." He brought his lips to Miyabi's nipples and sucked. The sweet milk in his mouth was so good that it made him cry. Hormones and parasites poured into his stomach, ready to rework him. 

Miyabi tilted her head back and moaned at the doubled sensation of breastfeeding on both sides. Her happiness was like floating in a sky of warm and fluffy clouds. She stroked the hair of her two partners and kissed the top of their heads. 

They were so absorbed that they missed the next class.

Chapter Text

"Don't you think Miyabi's acting weird?" 

"Something about her seems so slutty." 

"That Yua too, she's been acting sus." 

"They say just being near them can make someone go crazy." 

"I saw them licking each other's sweat the other day." 

"Is it just me or does it seem like their boobs are way bigger?" 

"I know right?!" 

"Maybe it's padding and they somehow think it looks good." 

The whispers around them were increasing every day, but somehow it only made Miyabi feel prouder. She didn't know what it was exactly, but something felt fulfilling to her. She wondered if there were similar rumors about Kei going around too.

Miyabi had been breastfeeding Yua and Kei during lunch the whole week. It had become an important ritual for them. Like her, Yua's breasts had grown larger and were overflowing her bra, and her nipples and areola got bigger and puffier. Yua's sweat also took on a sweeter and savory taste, and Miyabi took every chance she could to lap them up with her tongue. 

As for Kei… 

Miyabi eyed the short boy walking ahead of her on the way back from school. His juicy ass had become bigger and rounder, stretching the pants of his school uniform tightly. His black hair had had a sudden growth spurt over the last few days and now reached past his shoulders.

Miyabi skipped up towards him on the street and hugged him from behind. "Kei~!" 

"Miyabi-senpai?!" Kei's voice had already been on the cuter side before, and was even more higher pitched and girly now. 

Miyabi slipped her hands underneath his shirt and ran her fingers up his smooth belly. She reached his chest and explored it. Kei had started to grow boobs. They weren't too noticeable outside the shirt yet, but considering it had barely been a week, the soft slight mounds were a good sign of things to come. His nipples suddenly became a lot bigger too. Being able to see and feel Kei's gradual change, and knowing that her breastmilk was the cause, filled Miyabi with happiness and arousal. She pressed her clit, now two inches long, into the crevice between his butt cheeks. Even with their clothes in the way it felt amazing. She was overcome with a desire to penetrate into his little hole. "You're becoming quite a cute girl."

"What are you talking about senpai, I'm a boy."

"Are you sure about that?" Miyabi pinched one of his nipples, and Kei squealed in her arms.

"I-I’m sure!" 

"You would be so much better as a girl. Right Yua?" Miyabi turned them around together without taking her arms off of him.

"Indeed." Yua, who had been following them, held a hand to her mouth and giggled. 

Kei pouted. "Not you too, Yua-senpai." 

As Miyabi teased Kei's nipples, she felt her fingers getting wet. She leaned her chin on Kei's shoulder and stuck out her tongue, letting it extend and slither all the way down Kei's chest to lick his nipples. She felt a thin consistency and light taste on her tongue. It was different from hers, but it was milk. Her tongue retracted. "Oh my." She glanced up at Yua with a playful look. "To think that you would start lactating before Yua did…" 

"What?! That's not fair!" Yua pouted. 

"That's impossible, a boy like me can't lactate!" said Kei. 

"Taste it for yourself." Miyabi lathered her fingers in Kei's milk and stuck them into his mouth. Kei squirmed a bit as his tongue swirled around her fingers, then stopped. Miyabi pulled her fingers back out. "Right?" 

Kei silently nodded. He felt embarrassed and humiliated, but at the same time a strange happiness welled up inside him, and he couldn't tell why. 

Yua patted her own boobs. "I'm jealous, I want to be able to breastfeed you too…" 

"I'm sure you will be able to soon," said Miyabi. "In the meantime, we should go buy cute dresses for Kei."

"I-I'm not going to wear a dress!" Kei blushed.

"You sure seem excited about the idea though~" Miyabi brushed her hand over the front of his pants, where his erection was rising. Kei shivered and looked down with wide eyes, as if he hadn't realized it himself. 

A primal hunger stirred within Miyabi's womb. Her stomach growled, and she started salivating. There was a burning need inside of her. She pulled Kei and Yua into a deserted alleyway and pushed Kei against the wall. 

"Miyabi-senpai?" Kei asked in surprise.

Miyabi got on her knees and unzipped Kei's pants, pulling his 4 inch cock out of his underwear.

"Senpai?!"

"Shh." Miyabi held a finger to her lips and grinned up at him. "Yua, play with his nipples."

"Ufufu, leave it to me." Yua smiled mischievously as she started tweaking at his chest. 

While Kei moaned from Yua's stimulation, Miyabi's tongue snaked out of her mouth and swayed around Kei's dick. It pulled back and then shot in, the tip on her tongue poking into Kei's frenulum. Something was injected into him, and his penis swelled a little bit and took on a red hue.

Her tongue curled around Kei's dick and stroked it back and forth, as if it was jerking him off. She giggled as she looked at it for a bit before opening wide and taking his member into her mouth. Her tongue furiously lashed around at the dick even as her lips sucked forcefully on the shaft. Her stomach burned with desire, and she brought her hands up behind Kei to squeeze his thick and juicy butt cheeks. 

Above her, Yua had unbuttoned her blouse and brought out one of her breasts for Kei to suck on while she pinched and pulled on his nipples, his thin milk squirting and dribbling down his shirt. 

Miyabi loved the full feeling inside her mouth. She sucked harder and harder, and moved her head back and forth. The feeling of Kei's dick poking at her cheeks or tickling the back of her mouth excited her. She hungrily awaited her meal. 

Kei gasped for breath. "S-senpai, I'm about to co-" 

Miyabi pulled her head off of him completely. "I'll only let you cum if you agree to dress up like a girl." 

"Huh?" 

Miyabi's tongue wrapped tightly around the base of Kei's penis, preventing him from cumming. She smiled slyly at him as he whimpered. 

"P-please…" 

Yua flicked her tongue across his nipple. "All you need to do is say you'll dress up for us, and then you can cum in your beloved senpai’s mouth. Not a bad deal, right?" 

Kei gulped and stared down into Miyabi's eyes. A voice inside him told him to do it, that it was something he always wanted. Another part of him felt too ashamed and embarrassed. All the while, the pain from his dick feeling like it was about to burst kept getting stronger. "Okay…"

"What's okay? You have to say it clearly," said Yua. 

"Make me a girl!" Kei squealed.

Miyabi swallowed his cock and loosened her tongue. She sucked hungrily and happily as cum welled up from inside Kei and spurted out into her mouth and throat. Like his milk, it was only thinly viscous and had a light taste. It couldn't be called a man's cum.

But it was all very delicious to Miyabi. She kept drinking until she drained him completely, which took a surprising amount of time. Her tummy was full when he finally stopped cumming. Keeping a portion inside her mouth, Miyabi stood up and fed some of the cum into Yua's mouth. It occurred briefly to her that this was her first kiss. After depositing half a mouthful there, she kissed Kei and pushed the remainder into his mouth. 

The three of them leaned against the wall and panted together. 

"That was delicious, Kei," said Miyabi. 

Kei blushed and averted his eyes. "Thanks." 

"We're too messy to go shopping now, but let's do it over the weekend." 

"...Please take care of me." 

Chapter Text

The moon shined down on Miyabi as she walked naked through the woods. She was in a daze, closer to being asleep than awake. Her body moved on autopilot as it demanded something raw and feral. Breastmilk trickled down and formed a path behind her, leaving a trail of scents and pheromones. 

A wolf stalked out of the bushes, captivated by her smell. Its dick was already half erect. 

Miyabi got on her hands and knees, pointing her rear at the wolf and shaking her butt. More pheromones wafted off into the air from her vagina. 

The wolf circled around her, sticking its snout against her and sniffing. It licked her face, and she licked it back with her inhuman tongue. The wolf bent down to lap at the puddle of milk on the floor before circling back behind her. It mounted on top of her, its body weight and warmth pushing down pleasantly against Miyabi's back. She wiggled her butt against its dick. As the wolf tried to penetrate her, a thin tentacle crept out of her vagina to wrap around the wolf's cock and guide it into her hole. 

Miyabi moaned and squealed as her pussy was filled with canine cock. The wolf started humping her, shaking her body back and forth. Her tits jiggled with each thrust, sending pleasure to her brain. She was ravaged like the pathetic sack of meat that she was and she loved every second of it. The wolf nuzzled against her neck and she reached up to bring their heads next to each other, turning to kiss it and intertwine their tongues together. The feeling of its wild fur running across her bare skin sent shivers through her body. 

The wolf’s pounding became faster and harder, and it growled and grunted in her ear. Miyabi howled and squealed in return as she pumped her hips and clenched her vagina. The knot at the base of the cock inflated up and filled Miyabi's pussy, stretching and filling her in an exhilarating way. Wolf semen burst out into her cavities. The parasite in her womb fed on the semen and examined the new genetic material. 

They howled and whimpered together and collapsed into a pile on the grass. The knot stayed for a while, locking them together and keeping all the semen inside to fully soak into her walls. They nuzzled and licked at each other in the afterglow. 

When the knot finally subsided, the wolf started to pull out. But it found itself stuck. Tentacles kept a vice grip on its dick. By the time it realized that something was wrong, a swarm of tentacles had burst out of Miyabi's pussy and wrapped themselves around the wolf. The wolf struggled as it was pulled dick-first into Miyabi's vagina, which had stretched to impossible proportions. 

Despite her appearance, Miyabi's body could no longer be called human. 

The wolf’s legs were broken and contorted as it was forcibly absorbed. Its head kept squealing and whimpering until it was eaten up completely by Miyabi's pussy. Silence returned to the air.

Miyabi's navel expanded and wriggled in grotesque shapes as her prey struggled to its last breath. She rose up on her knees, a dazed look on her face as her tummy settled into a form that made her look like she was pregnant. The parasite was capable of breaking down and compacting matter and energy to impossible degrees, and it pushed that ability to the limit. She stayed still for a while, then her tummy trembled again. It throbbed like an unholy monster as the last vestiges of the wolf were digested, and with a hollow guttural sound as if something had just been erased from the universe, her tummy suddenly shrank back to normal size as if nothing had ever happened. She let out a long burp as her parasite fed on the genetic material and made it a part of her.

Miyabi looked up at the moon, threw back her head, and howled. 

"AWOOOOOOOOOOOO!!!" 

Miyabi woke up in her bed to an annoying itch on her back. She groaned and reached her hands behind to scratch herself. Somehow she was more flexible than before, and could reach all the spots that were itching, but it was still very annoying and took a long time to fix. She groaned and opened her eyes. 

Sunlight streamed in through a gap in her curtains. It was Saturday, and she had a date with Yua and Kei to go shopping. She still had some time before she needed to get ready, so she rolled around on the bed a bit. For some reason, her stomach felt extremely full and bloated, and her skin kept itching here and there.

Her thighs felt sticky when she sat up over the bed. Was it sweat? Maybe it got hot last night. 

Miyabi pulled herself out to take a shower and wash the grogginess from her head, and returned to her room. Before changing, she admired herself in the full body mirror. 

Her breasts were larger than her hands could grab onto even with her fingers stretched out. Her areolas were like another pair of dark reddish mounds sitting on top of her breasts. Her nipples, now the diameter of a large coin, protruded out by an inch. She lovingly massaged her breasts and flicked her nipples, enjoying the sparkling tingling sensations. 

As she fiddled with them, she realized that there was a slit-like opening in her nipples. She stepped closer to the mirror and investigated with her fingers. Her fingers spread the hole slightly apart to reveal pink fleshy insides dripping with milk. She was almost able to stick the entire length of her index finger in, so the opening was deeper than the nipple and reached into the breast itself. It was really small and tight, but gave similar sensations to when her pussy was penetrated.

If I keep widening them, can I stick a dick into them? 

She imagined sucking Kei's girly cock into her breasts as she stuck fingers in both of her nipples. The ecstasy sent her collapsing to her knees, and she moaned carnally towards the ceiling. Heat swirled inside her breasts as she got closer to climax and she came by spurting a ton of milk into the air. She basked in the afterglow for a while, then checked out the rest of her body. 

The lust crest on her navel was clearly visible now. Elegant swirls of red and pink lines spread out as if imitating her womb, and formed hearts in the center. Her waist had slimmed down, but her hips and butt had also grown thicker like her breasts.

She rubbed the nub above her vagina and her clitoris woke up, growing to two inches. She held it between her fingertips and stroked it back and forth, buckling her hips against herself as she looked at her body in the mirror. It didn't take long for her clit to spurt out a thicker, viscous version of her milk into the mirror, and she lapped it up with her tongue. 

She had to clean up and wash herself a second time.

It was getting close to the meet up time, so she put on a knee length black skirt and a light blue frilly blouse. The blouse was cropped a little short, so a thin strip of her waist was visible, and when it fluttered when she moved her lust crest would just barely peek below the fabric. She added blue ribbons to the sides of her head and prepared to leave. 

The living room on the first floor of her house reeked of alcohol when she walked down. She scowled at the source. Her piece of shit dad was passed out on the couch, snoring loudly. Probably had another large drinking party the previous night. 

He woke up a bit just as she was almost out the door. "Where are you going, dressed like a slut like that?" 

The common fantasy she had since she was a kid floated up in her head again. Of holding a black pistol to his forehead and pulling the trigger to blow his brains out.

"Shut up," Miyabi snapped at him and slammed the door behind her. 

Her good mood had turned sour and she grumbled on the walk towards the train station. 

If only I could get rid of that bastard for real!

Her mood lightened up when she saw Yua and Kei at the train station. They all lived near each other, so they usually agreed to meet up here. "Yua! Kei!" 

"Miyabi!" Yua waved energetically, while Kei shyly raised a hand. With shorts and a baggy hoodie, Kei looked more like a girl than a guy. Yua was dressed in jeans and a sleeveless white shirt, and looked smooth and stylish. 

"Sorry, did you wait long?"

"No, we just got here a little early. Seems like Kei can't wait to get all prettied up." Yua held a hand to her mouth and snickered.

"I-it's not like that!" Kei fiddled with his fingers and squirmed. "Why do you even want to dress me up, I'll just look bad."

Miyabi patted his head. "You'll definitely look pretty." 

Kei blushed. 

The train arrived and they boarded. There weren't many people so Miyabi and Kei sat on the seats, but out of habit Yua held onto the railing and stood in front of them. They talked and laughed about nothing of consequence for a while. 

A glint of light caught Miyabi's eye. Since Yua's shirt was sleeveless, her bare armpit was in full view. And perhaps because the sun was shining on her through the window, sweat was trickling down her arms. The folds of her armpit, combined with the glistening moisture shining from the sun's rays, stirred something inside Miyabi.

Miyabi knelt with her knees on the seat to raise herself and hugged Yua. 

"Miyabi?" Yua raised her eyebrows. 

"You're too hot," Miyabi whispered. She brought her mouth closer to Yua's side and lasciviously licked her armpit. 

Yua squealed a bit as her shivers ran up her body. Kei covered his mouth with his hands as he stared at them wide-eyed, and the other passengers couldn't believe what they were seeing. 

Miyabi ignored everyone else and focused on licking and sucking against Yua's armpit. Yua's sweat, which had taken on a new flavor ever since she started drinking Miyabi's milk, formed a nice morning treat. The feeling of her tongue slicking between the folds of skin excited Miyabi, and to her Yua's armpit started to look a bit like a vagina. 

Yua was too surprised to feel anything at first, then was embarrassed yet turned on at the rather taboo thing Miyabi was doing in public. She felt ticklish but in a pleasant way. And as Miyabi kept lapping at her with her tongue, Yua's armpit cells started to be modified to give her sexual stimulation. The parts of her skin that were licked the most turned pink and almost seemed to accept Miyabi’s tongue inside her… 

Everyone else in the train compartment either desperately tried to ignore them and pretend that nothing was happening, or had lost control of themselves and started masturbating. 

Yua shivered as she came from Miyabi's stimulation. 

Their stop arrived and the three of them got off, leaving behind a scene of chaos and spurting body fluids for someone else to deal with. 

"Um, what's the plan?" asked Kei. He was still erect from having a front row seat to their debauchery. 

"I was thinking we should get you some bras since you're growing boobs now," said Miyabi, "but if you're growing fast it would be a waste. Maybe camisoles and bra tops would be good." 

"We might need to get those for ourselves too," said Yua. "My boobs seem to be growing every day." 

"Good point." 

They headed for a lingerie store, and picked out various outfits in different materials. Fluffy frills, floral print lace, smooth pink silk, they enthusiastically picked out a lot for Kei and themselves. Kei tried to refuse using the changing rooms, but eventually gave in to their pressure. He was so cute anyways that no one suspected a thing. Miyabi teased his cock a bit in the changing room as Kei desperately tried to keep his moans from leaking out. 

She couldn't help it, the sight of Kei's cute penis being wrapped up behind white lace panties and a pink bow was too adorable.

Of course, instead of giving him release and making a mess, she left him hanging unsatisfied as they paid and left the store. They made Kei wear one of the padded camisoles and panties for the rest of the day, and got rid of his male underwear. 

A few more stores, and they had replaced Kei's outfit for the day. He now wore a white floral cami top, pastel pink jacket and skirt, and gray thigh highs. The fabled zettai ryouiki glimpse of skin between the skirt and thigh highs stirred at Miyabi's heart. Brown loafers completed the set. 

Miyabi threw her arms around Kei. "You're really so goddamn cute!" Just a little bit more and you'll completely fall and become my girl.

Yua sandwiched him from the other side and stroked his cheek. "So cute you make me jealous."

Kei could only mumble unintelligible sounds, but his blushing face and the tent in his skirt pushing against Miyabi's leg made his feelings perfectly clear. 

They had lunch at a burger store, but everyone felt dissatisfied and unfilled. It didn't take long to figure out what was missing. They ordered milkshakes after they finished their burgers, and sat in a secluded corner as Miyabi squeezed out her own milk for them all to mix into their drinks. 

"I guess I can't survive without Miyabi's milk now," Yua joked. 

"I want to drink from the source again," said Kei.

"This is novel too though," Miyabi said as she stirred her milkshake with a straw. "I can feed you directly later anytime." 

Kei suddenly shivered. 

"Is something wrong?" asked Miyabi.

Kei blushed. "I think I'm lactating again," he whispered. 

Yua slid her cup over to him with a sly grin.

"I-I can't just do that here!" 

"We're in a small corner and your back is facing outwards, no one can see you," said Yua. 

Miyabi scooted her chair over to stick next to Kei and wrapped an arm around his back. She simultaneously helped hide him from view and goaded him. "Come on, Kei. You'll feel so much better if you let out that girl juice." 

"I'm not a girl…" Kei's protests kept getting softer. 

Miyabi whispered directly into his ear. "You sure seem like you want to become one though. How does it feel, knowing that you're all dolled up and cute? That everyone sees you as a cute little girl, that your little boobs are growing for us, that you get to breastfeed people…" She lightly massaged Kei's chest in a circular motion. 

"I…" 

"Your body seems excited." 

Kei's skirt had tented up. As Kei looked down, horrified, Miyabi pulled the front of his skirt up to reveal his dick straining against his pretty panties.

Miyabi discreetly slid his camisole strap off his shoulder underneath his jacket, and freed one of Kei's boobs. She massaged and flicked at that growing mound, and let her long tongue drop down to lick his nipple. "Don't you want to be a mommy and give others your milk?"

Kei suddenly sucked in a bunch of air, and more milk started to leak out of his nipple. Miyabi held her cup underneath his chest as she squeezed his milk out, then switched to Yua's cup. When that breast ran out of milk, she repositioned his clothes to squeeze out the other breast into Yua's and his cups, wiped his nipples clean with her tongue, and fixed up his top. 

His dick twitched, looking ready to burst. 

Miyabi pulled down his panties and let his cock free. Its red tip waved in the air. She held a cup beneath it, and as she bit and licked Kei's ear Kei started cumming without anything touching his dick. The milk-like cum spurted into the cup, and she licked his tip clean before putting everything back in place. She distributed the cum among their cups, and now everyone had their own milkshake blend that included Miyabi's and Kei's breastmilk and Kei's cum. 

She stirred her cup with a straw and sucked on it. It tasted so wrong yet so right at the same time. Kei's and Yua's faces flushed red as they drank theirs. Heat swelled in their stomachs, and their heavy panting flooded the store with pheromones. 

They took Kei to get his hair cut and styled, and his eyes that were usually hidden behind his bangs became more visible. His plain hair was fluffed out and curled. Combined with a trip to the makeup store, Kei’s cuteness was multiplied by a hundred. Girls and guys alike stared at him as they passed. 

A group of guys tried to approach them, but Miyabi's glare pierced directly into their primal instincts and they scampered away in fear.

By the end of the afternoon they had so many bags that Miyabi had to help carry them to Kei's apartment, while Yua returned home to eat with her family. It was a small place with only one room, and barely any furniture. 

"Where are your parents?" asked Miyabi.

"I actually live alone." Kei scratched his cheek shyly. 

Miyabi dropped all her bags on the floor as something stirred in her. A hollow void in her chest begged to be filled as she slowly turned her head to look at Kei. "You live here alone?" 

"Yeah, why?" 

Miyabi threw Kei onto the mattress on the floor and immediately jumped on him. 

"S-senpai, what are you doing?!" Kei squealed. 

"I've been watching you get cuter and cuter all day, I can't hold back anymore," Miyabi hissed as she pulled Kei's top off. She grabbed ahold of Kei's breast and squeezed it as she pushed her lips against his and kissed him. Her tongue slid into his mouth, probing around the inside of his cheeks, twisting around his tongue and then penetrating deep into his throat. Her other hand reached under her skirt and furiously dug in and out of her pussy. 

She broke the kiss and lifted herself up, her tongue forming a bridge between their mouths as part of it was still inside his throat. They were connected even when their heads were a foot away from each other, before her tongue slid out of him and retracted into her mouth. 

Miyabi pulled his panties off but left his thigh highs and skirt on. While pinning Kei's hands against the mattress to keep him from struggling, she leaned back and licked her lips as she admired the masterpiece that she had crafted over the day. 

A boy with the cutest face and fluffy hair. A mostly flat chest with the beginning buds of new breasts, yet with milk dripping out of those vibrant pink nipples. A narrow thin waist that flared out to wide hips, partially covered by a pastel pink skirt that had been pushed out of the way by a bulging erect penis. Plump, juicy thighs squeezed by the sock’s bands. 

Perfection. 

"Miyabi senpai…" Kei looked up at her with puppy eyes. 

"You make the cutest girl."

"I'm not a girl though."

"You're still saying that?" Miyabi felt that her fingers were thoroughly lathered with her own pussy juices, so she brought her hand over to Kei's dick. She stroked it a bit, making his whole body shiver, but that wasn't her aim this time. Her hand trailed down and cupped his little balls. She could just crush them right now. But she let them be. She gathered more pussy juice onto her fingers then brought them to her real objective. "Are you sure you're not a girl when you have such a cute and needy butt pussy?" Her fingers circled around his rim then made their way inside. 

Kei yelped as he experienced his first penetration. "Wait, that's, that's not for-" 

"I'm gonna turn you into a girl no matter what." Miyabi reached in deeper and curled her fingers, trying to find his prostate. She smiled as she saw him shiver and squeal in reaction, and repeatedly rub that same spot.

"Mi… Miyabi…" Kei's voice was high and needy. His eyes were watery, but at the same time they begged at her. 

"You are so adorable," Miyabi cooed. She gently caressed his cheek with her other hand. She slowly lapped her tongue across his little waist and belly button, then slowly dragged it up to his breasts even as she kept fingering his ass. She sucked on his nipple for a while, then continued her journey and licked her way up his neck. They stared warmly into each other's faces, then pressed their bodies together as they shared a soft and sensual kiss. Her clit rubbed against his thigh as his cock was squished against her stomach. She inserted another finger into his butt pussy, spreading him open. 

"Miyabi…" Kei whispered, their breath mingling with each other. "I've had a crush on you for a long time."

"I know." 

"I love you."

"I love you too."

"As a guy?" 

"As a girl."

Kei squeezed tears out of his eyes. "Can I really become a girl even though I have a penis? Even though that part…"

Miyabi nibbled his ear then whispered into it. "Of course you can. I'll give you a giant cock one day and I'll still see you as my cute precious girl."

"Then…" Kei’s butt throbbed and clenched on her fingers. "Mold me into anything you desire." 

Miyabi dug furiously with her fingers, and Kei's dick finally let loose. It shot white strings of thin liquid all over them, clearly the juices of a little girl. 

Chapter Text

As Miyabi was about to leave for school, she ran into an unusual scene. Her mother was waiting for her with a bento prepared. Miyabi approached the doorway with slow steps, squinting suspiciously. Her chest tensed up as her breathing became silent and shallow.

"Um, here." Her mother handed the bento box wrapped in a handkerchief to her. "I made you lunch."

"... Thanks." Miyabi gingerly held the tied-up handle with her fingertips, as if it were a bomb. 

"Is everything okay?" Her mom asked with a hushed voice and dead eyes. "You've been… acting weird lately, and I keep hearing sounds from your room." 

"..." 

She looked at Miyabi's chest. "Are you stuffing your bra for someone?"

"It's nothing." 

The annoying roar of her drunk father echoed through the house. "Oi, Miko! Why haven’t you washed my clothes yet?!" 

Her mother flinched. "Have a good day," she whispered, before walking deeper into the house. 

Miyabi pushed the front door harder than she intended to. 

"It's too late to be acting like a mother now after all this time," she muttered as she stuck the bento into her school bag. 

She was in a sour mood as she walked to school again. She needed something to vent her frustrations with. The storming mess of anger and resentment kept spinning around inside her, amplifying and feeding back into itself until it took over her mind.

When she cut across a park, Miyabi saw a petite girl with orange twintails in a middle school uniform who was loitering off the trail in a secluded spot and checking her phone. 

Miyabi hugged the girl from behind and pressed her bulging clit against her back.

"What- kyaaa-" The girl screamed, but was cut off as Miyabi's tongue snaked around her head and invaded her mouth, shoving itself deep down her throat. Pheromones and parasites in Miyabi's saliva started to take over the girl. 

Miyabi reached a hand under the girl’s shirt to fondle her breast, while her other hand reached into the girl's skirt and panties and shoved her fingers into her pussy. Miyabi thrust her fingers in and out at the same time that she fucked the girl's throat with her tongue. The girl's attempts at struggling only made the stimulation on her clit better. 

When Miyabi let go, the girl was left as a panting mess in her arms. But Miyabi wanted more. The twisted mess of heat, anger, and hunger spinning in her gut hadn't calmed down yet.

Miyabi pushed the girl to the ground, pulled her panties out of the way, and sat on the girl’s face. Her clit pushed its way into the girl's mouth as the parasite in her womb extended tentacles down to pull the girl's tongue up into her vagina. Her vagina kneaded and pulled on the tongue, and with the help of the parasite’s liquids, the tongue grew longer and longer as it was sucked deep into Miyabi's vagina and up into her womb. The parasite remodeled the tongue, turning it into a sensitive erogenous zone and giving it bumps and knobs that pleasured Miyabi. 

Miyabi moaned as she ground her butt into the girl's face. The girl’s body twitched and spasmed, the new stimulations from her remade tongue sending her into an orgasm. Miyabi repeatedly clenched her vagina around the tongue, threw her head back, and came. Her pussy juices mixed with parasites flooded into the girl. 

They stayed still in the afterglow for a while. 

The dark clouds swirling inside Miyabi's head dissipated and she was surprised at what she had done.

The perception alteration from the parasite blocked her from feeling guilty, but it manifested as a feeling that she should give the girl extra care to make up for it.

Miyabi sat against a tree and pulled the dazed girl up to sit against her, cradling the girl in her arms and trying to keep her comfortable. 

After a while, the girl came to her senses bit by bit. She twisted and snuggled against Miyabi, breathing in her scent, then slowly opened her cloudy eyes. She looked up at Miyabi and extended out her bumpy tongue. Miyabi did the same, their tongues wrapping around each other in a smooth spiral, before going in and out of each other's throats like a tug of war. When they were done climaxing together a second time, the girl's eyes were clear. She was back in a normal mind, except her sense of morals had been warped and overwritten with reverence for Miyabi. 

"May I know your name, onee-sama?" asked the girl.

"It's Miyabi. What about yours?" 

"My name is Hanako." Hanako yawned and snuggled against Miyabi's breasts. "Onee-sama, can I stay with you for the rest of the day?" 

"Don't you have to go to school?" Miyabi realized how hypocritical it was for her to ask after the words had already left her mouth. 

"I don't want to." Hanako pouted. "Everyone either ignores me or bullies me. That's why I was just hanging out here." 

"I'm sorry to hear that." Miyabi rubbed Hanako's hair. She was suddenly overcome by a protective urge, and kissed her forehead. 

"No one likes me at home either," said Hanako.

"My house is also like that," said Miyabi. "So I often stay out late." 

They relaxed in the morning breeze for a while, but it was getting late. Hanako aside, Miyabi didn’t intend to skip school that day.

"I need to get to school. You should probably do the same," said Miyabi. 

"Will I be able to see you again?" asked Hanako.

"If you want, we can see each other after school."

"I'll put up with it for now then." Hanako sighed. She looked up meekly at Miyabi. "Before I go, may I have a snack?" 

"Snack?" 

Hanako squeezed one of Miyabi's breasts. "You smell so tasty." 

Miyabi unbuttoned her shirt and pulled one breast out of her bra. Her malformed nipples were already leaking milk. Hanako eagerly brought it to her mouth and sucked on it, drinking down a lot of Miyabi's milk. Even more parasites and chemicals made their way into her. Hanako's body couldn't live without Miyabi anymore. 

When Hanako was done, she wiped her mouth and left, waving back at Miyabi every few steps.

Miyabi watched her new little sister go out of sight before she resumed her walk to school. 

It was halfway through the first period by the time she reached her class. 

All eyes turned towards her as she walked in, but they quickly looked away. When Miyabi sat down at her seat, Yua leaned in and whispered to her. 

"Did something happen with your family again?" asked Yua.

Miyabi clicked her tongue. "Nothing much, just my mom being weird. She made me a bento."

Yua raised her eyebrows. "Oh, that's… unexpected. But it's a good thing, right?" 

"If it's not poisoned." 

The teacher cleared his throat, so they saved the talking for later. 

They had physical education that morning, and as they stripped in the changing room, Miyabi and Yua both drew a lot of stares from how their breasts were spilling over out of their bras.

Miyabi was also checking out the girls of her class in various states of undress, and the urge to eat them all welled up inside her. Her clit grew larger, straining against her panties until the tip of it poked out over the elastic band and showed itself off to the world. Her pheromones had saturated the room, and here and there some girls had already started masturbating. 

"What the hell did you two do to your bodies? You look like a bunch of breeding sows." A stuck up girl with heavy makeup and long, obviously-dyed bright blue hair sauntered up to them. It was Reika, one of the popular girls in the class, who would occasionally bully or take jabs at Miyabi and Yua when she was in a bad mood. 

"Huh?" Miyabi lifted her chin up and snarled at her. Seeing the usually meek Miyabi become aggressive, Reika flinched. "It's none of your business." 

The other girls, sensing trouble, quickly changed into their gym uniforms and left the room, leaving the three of them alone. 

Yua crossed her arms and glared at Reika. "You're just a pleb who can't appreciate the gifts that Miyabi gives out." 

"I knew there was something fishy about you two," Reika spat. "How are you not ashamed of showing your faces at school? Sluts with big degenerate sacks like you two should be working in a brothel." She raised her hand and slapped Miyabi’s boob, making it pop out of her bra and spray milk into Reika’s face. "Eew, what the hell?!" 

"Since you love big sacks so much." Miyabi pushed Reika onto a bench and mounted her legs. "How about I give you some giant ones? Yua, grab her hands." 

"Got it." Yua pulled Reika's arms over her head, keeping her from resisting. With their bodies altered by the parasite, Reika couldn't hope to match their physical strength and struggled futilely. 

"Let me go, you freaks!" Reika shouted as Miyabi flipped up her skirt and tore off her panties. "Stop!"

"You never stopped bullying people when they begged you to." Miyabi pulled off her own panties and let her clit swing freely. At this point it looked more like a penis, with how engorged it was. Unlike a regular one, it was a bright fleshy red like the parasite’s tentacles, and had several ridges on it beyond just the head. It was bigger than Kei's, now at six inches long. 

Reika's eyes shot open in horror as Miyabi forced her legs open. "No, please, you can't put it in there!"

"Don't worry, I won't." Miyabi coated her dick with her dripping pussy juices, and slammed it into Reika's ass. Reika screamed but was quickly muffled by Miyabi sticking her soaked panties into Reika's mouth. 

Miyabi held Reika's legs like handles, using them for leverage as she violently thrust in and out of Reika's rear. On the other end, Yua was using Reika's hands as a sex toy, rubbing her clit on them and sticking them into her stretched out vagina. 

Tears streamed down Reika's cheeks as she cried from the double ended assault. Miyabi freed both of her breasts from her bra, and her large gaping nipples started splashing Reika’s body with milk. Her school uniform became absolutely soaked with Miyabi's lewd juices. With her mouth forced open, Reika was forced to drink when Miyabi aimed a stream of milk into her mouth. 

"I can't wait until I can do that too," Yua said in between her moans of pleasure. "My boobs are larger than yours now, so why can’t I shoot out milk too?" 

"Maybe it'll take a while longer," said Miyabi. 

As Reika drank down the milk, her body was taken over by parasites and pheromones. The milk even seeped into her skin, making her absorb it from all over her body. Her small breasts that had barely been there at all quickly expanded and tore her bra and shirt apart, revealing new mountains. 

Miyabi licked her lips as she watched those boobs grow right in front of her. Her penis, which had inherited some characteristics from the wolf she vored, expanded at the base and formed a knot inside Reika's ass. Reika thrashed from the pain but it only made Miyabi feel better as she started spurting a thick liquid. 

The parasites quickly went to work modifying Reika's butt. Her entire rectum turned into a sexual organ, and the walls of her cave became like a bunch of squirming little tentacles that would stimulate anything that went inside her. The rim of her hole became pink and fleshy as her butt cheeks expanded too. Her vagina, untouched, squirted out her juices as she was forced to cum over and over again. 

Now that her knot was keeping Reika down, Miyabi leaned over Reika and grabbed her boobs, violently squeezing and squishing them. 

An idea came to her. 

She grabbed her own breasts and maneuvered her nipples over to Reika's. When their nipples were lined up, Miyabi's large ones opened and sucked Reika's into them. Miyabi moaned and squealed at the extra pleasure, her dick spurting yet another load into Reika's sexualized butt. Little tentacles inside Miyabi's breasts pierced a hole into Reika's nipples. Now Miyabi's milk was pouring directly into Reika's breasts, and their expansion accelerated further. 

Miyabi's nipples sucked and pulled on Reika's further, warping them and making them longer. As they grew, Miyabi was able to pull back and see Reika's twisted nipples growing between their breasts. More and more of Reika's nipples - they were more like sausages at this point - were revealed as they came out of Miyabi, but even after sitting up straight the growth didn't end. The nipples were still growing. They had also turned bright red and bumpy. With a loud pop, the enlarged tips of the nipples that had still been inside Miyabi finally pulled out, revealing them to be more like dicks. 

On top of the massive breasts, Reika now had penises where her nipples should be, spurting thick juices into the air. Yua grabbed one of those floppy penises and shoved it into her vagina while she licked and swallowed the other one. She came, the walls of her vagina becoming tentacle-like like Reika's rectum, milking out Reika's dick nipples.

With one last thrust, Miyabi howled and spurted her last load into Reika before forcibly pulling her knot out. Reika's gaping, bleeding butthole was the size of a fist, twitching from the sudden freedom and spilling Miyabi's juices onto the floor. 

Miyabi and Yua stood back to admire their handiwork. On the bench lay an unconscious girl, twitching and spasming. Her previously slim form had been twisted into an unbalanced mess. Her ass cheeks were way larger than before, and her breasts were each the size of trash bags, overflowing from her to the sides of the bench. The dick nipples were still leaking milk onto the floor, which had been covered in a white flood at this point. The entire room stank. 

Miyabi and Yua cleaned themselves up and changed back into their uniforms, skipping out on gym class and heading to lunch early, leaving the sack of flesh behind.

When the rest of the girls came back from gym class, they were overwhelmed by the pheromones to the point that they couldn’t control themselves and all started masturbating or having sex with each other. A few used the unconscious Reika’s dick nipples as dildos, while others licked at Reika’s pussy. 

All of the girls in Miyabi’s class were now infected with parasites. While not all of them exhibited physical changes yet, their minds were forever changed. 

Chapter Text

When Kei woke up, he was surprised to see a mess of pink hair in front of him. He jumped out of bed in surprise. 

"Who's there?!" His voice was oddly high pitched.

When he turned around to look at his mattress, there was no one there. He swung his head around, searching the room, until he realized it.

At some point during the night, his hair had grown even longer and had turned into a pastel pink color. It reached the top of his butt now. He went to check himself out in the bathroom mirror.

Staring back at him in the reflection was a beautiful girl with a pure, refined aura. His face had gotten even more feminine, and his boobs had grown to become C cups.

But when he looked inside his pajamas, his penis was still there. For some reason, a pang of disappointment crossed his mind.

What am I then? Am I still a boy? Am I a girl? Am I neither? 

Kei's heart leapt into his throat as the foundations of his identity fell apart. He couldn't recognize his own body at all. It looked, felt, and sounded nothing like how he was used to for the past 16 years of his life. It was like he was a detached soul clunkily moving someone else's body.

The alarm on his phone rang, and he realized that he needed to go to school. He barely had any time before he had to leave the house. 

He briefly washed his face and mouth, then opened his closet. 

His eyes widened.

Next to his usual male school uniform was a girl's sailor blouse and skirt. Miyabi or Yua must've snuck it in with the rest of his haul from the shopping trip. 

Kei gingerly reached out his hands to the sailor blouse. He had always admired the cute uniforms that the girls wore. They seemed a lot more comfortable and interesting than the guy clothes. 

Am I really allowed to wear this? I'm not really a girl. I still have a dick.

A slight smell caught his attention, and he leaned in to sniff the uniform. It was Miyabi's scent. Maybe it had been one of her spare uniforms. It was like she was beside him, gently urging him to wear it. 

But is it really okay…

Miyabi's words returned to him. She said that she saw him as a girl, regardless of the fact that he had a penis. She even joked about how after giving him a giant one, he would still be a girl. 

So, I can be a girl? 

His heart throbbed in his chest. Why did he feel so excited? Was it the thrill or guilt of doing something wrong? It didn't feel wrong at all though. Then why?

Oh.

How did I not realize it? 

I guess I forced myself not to see it. 

It had seemed impossible after all. It was better to ignore it, than to want and be hurt by it.

But Miyabi made it possible for me.

This was what I had wanted all this time. 

She hugged the uniform to her chest. Suddenly, her body didn't feel alien anymore. It fit her more than it ever had. She lightly massaged a breast, not in a sexual way, but to affirm to herself that they were hers. It wasn’t an illusion. They were real. She really did have breasts. The warmth and happiness that grew in her chest spread to every part of her body.

Tears dropped from Kei's eyes. "Miyabi… thank you…"

She took off her pajamas, and put on her lingerie and the girl's uniform. She twirled around in front of the mirror and blushed, shy but happy. She felt more comfortable with her existence than she had ever remembered.

Kei couldn't stop herself from smiling as she left for school. The dull scenery that had always been seeped in a monochrome tint looked vibrant and colorful. It was like she was properly smelling the scents of nature, of the trees and rivers, for the first time.

She drew more attention the closer she got to school. When other students saw her, they paused in their tracks to stare. At first she thought they were demeaning her for the change, but it seemed like they didn't recognize her at all. She had been given a new life. 

Previously Kei had always stayed in the background, trying not to be noticed. She would sink into corners, hide in the shadows, or hug the walls as she walked down hallways. Now she walked in the middle, head held high and smiling brightly. 

Heads turned as she glided along the floor for first years. She reached her class, took a deep breath, and entered. 

Questioning eyes stared at her, wondering what she was doing there, but nobody approached to talk to her. She made her way to her usual seat.

Aya, the cool beauty with golden hair who sat in front of her, was quietly reading a book again that morning. When Kei sat down, Aya briefly looked up, nodded a lazy greeting, and went back to reading her book. A few seconds passed before she whipped her body around and braced her arm on Kei's desk. Her eyes were popping out of their sockets. "Wait a minute - Kei?!?!?!"

At Aya's shout, and from seeing which table she sat at, the rest of the class finally realized who Kei was. 

There was an uproar as everyone surrounded her.

"Wait that's Kei?!"

"I always thought he was cute but…"

"Did he finally turn into a girl?"

"There's a limit to how much someone can change over just a weekend!"

Kei awkwardly held her hands up to pacify the crowd. "Haha, yeah, it's me, Kei." 

"Uh…. Why are you wearing a girl's uniform?" someone asked.

"That's the part that got to you? I feel like the other physical changes are way more surprising," said another.

Kei blushed. "I just thought… yeah, I decided that I'll be a girl, so…"

Aya nodded contently to herself. "About damn time," she muttered. 

Kei blinked. "What do you mean?"

"I always felt that you were closer to a girl than a guy." Aya shrugged. As Kei stared blankly at her, she sent an exasperated look back. "Wait, were you not aware of yourself?"

Kei shook her head. "No…" 

"Pretty much none of the girls saw you as a guy. We're not surprised that you finally came out, but surprised at how fast everything happened."

The rest of the girls nodded along to what Aya said.

"Eeeh?!" Kei's jaw dropped. Her pride hurt a little - wait if she didn't want to be a boy anymore, there was no point in being hurt about that. But some things take a while to get used to.

"Well we started seeing some more signs recently…" said a girl. 

"The guys have been looking at you with lecherous gazes over the past week," said another. 

A bunch of the boys in the class immediately protested, but with how red their faces were it was hard to believe their words. 

Kei laughed awkwardly, unsure of how to take in all the new information. 

The teacher entered the classroom, told everyone to take their seats, then stared at Kei for a second. "Yeah, that's what I expected," she muttered before proceeding with homeroom as usual.

Everyone knew I wanted to be a girl before I did???

As Kei walked out of the classroom for lunch, she suddenly found Aya linking arms with her.

"Hey, let's go to the cafeteria together." Aya leaned forward to look at Kei's face with a grin. 

Blood rose to Kei's face. "Eh? What's this all of a sudden?" 

"You're one of the girls now."

Kei wasn't sure what that had to do specifically with lunch, but she figured that going with Aya couldn't hurt. She normally only had Miyabi and Yua as friends, and it might be a good idea to expand her social circle a bit. 

I want to drink Miyabi's milk though… I guess I'll see her after school. 

Kei allowed herself to be dragged off by Aya, who seemed oddly excited for some reason. News about Kei's coming out had spread immediately, so they drew a lot of stares as they walked.

In the cafeteria, after grabbing their lunches, Aya led Kei to where her other friends were. "These two are Momo and Riko," said Aya as she introduced her friends.

"Hallo~" Momo, the cutesy one with red hair, waved her hand lightly in a greeting.

Riko, tall and with a long black ponytail, leaned in a bit to get a better look at Kei. "Oooh, so you're the rumored Kei." 

"Rumored?" Kei tilted her head.

"Lately Aya is always talking about how cute you were getting," she said with a smirk.

Aya slammed a hand on the table, her face a deep red. "Hey, I was not!"

Riko and Momo snickered as Kei and Aya sat down at their table.

It was a novel experience for Kei. She had been with Miyabi and Yua pretty often, so it was far from her first time sitting at a table with a group of girls, but it was the first time that she… felt like she was one of them, instead of being the odd one out. She didn't entirely feel comfortable yet. It was still a new thing that she hadn't been able to completely wrap her mind around. But she felt like she fit in with the people around her just a little bit more. 

She felt herself become more confident and open to others. Like she wasn't putting on an act anymore. She was still shy by a long shot, but it was an improvement.

After they finished eating, Aya asked to talk to Kei alone before the next class started. She led Kei outside the building, to an area that was relatively hidden from view.

"What did you want to talk to me about?" asked Kei.

Aya turned to face her, but looked downwards and off to the side. She played with her fingers behind her back. "So, about how I always felt like you were more of a girl than a guy." 

"Yeah?" Kei tilted her head. 

"There's this phenomenon, you see," said Aya, "where lesbians would find themselves inexplicably crushing on a guy, and later on it would turn out that the guy was actually a trans girl. Sometimes they pick up on the underlying femininity before the trans girl even realizes it herself. That even without a conscious awareness, something in the way they act shines through." 

"That's… interesting?" Kei nodded along, but she couldn't really tell what that had to do with her. Yeah, she was the one that ended up being trans, but what did that have to do with- 

Kei's eyes widened.

Aya meekly met her eyes and blushed. "Yeah. I've had a crush on you for a while. I was waiting to see if you would ever come out or not before saying anything, and, so…" 

Kei blushed too, and the air between them tingled with warmth. "Oh…"

"Yeah…" Aya tried to straighten herself up. "So, um, would you please go out with me, Kei?"

Kei's heart leapt in her chest. She was flattered and touched. Aya was beautiful, and Kei had always felt reassured by Aya's cool and stoic presence in the seat in front of hers. 

But… Kei wasn't exactly single. 

Though I haven't really dated Miyabi or Yua either, I guess. We never talked about dating or being girlfriends or anything like that. 

She had even had sex with Miyabi - even if others might not consider Miyabi's fingers going inside her as ‘sex’, to Kei that moment was intimate and meaningful enough. 

And the bonds that they had, of literally sharing and consuming each other's essence… Kei wasn't willing to trade that for anything.

"I'm really happy and grateful for your feelings, but…" Kei trailed off.

Aya frowned, her eyes looking like they were about to tear up. "But?" 

"Before we decide anything, there's someone you should meet." 

Chapter Text

Miyabi turned around as someone called her name, and was immediately blown away. 

Kei was waving and running towards her. But unlike the last time she had seen Kei, this time Kei had long light pink hair, somehow looked even more cuter, and was wearing Miyabi's spare uniform that she had sneaked into Kei's closet. 

Miyabi's heart pounded like a jackhammer. Her chest was on the verge of exploding when she ran in and squeezed Kei into a super tight hug. 

"Ow, can't, breath-" Kei stuttered.

"I can't help it, you're just so cuuuute!" Miyabi squealed. She jumped excitedly up and down, spinning them both around before loosening her grip so she could kiss Kei several times. Out of the corner of her eye, she noticed the girl who had been following Kei, staring at them and looking horrified. A surge of possessiveness rose up inside Miyabi and she let out a guttural growl. 

The girl shivered and retreated back. 

"Miyabi, wait." Kei loosened her grip and held her arm. "This is Aya. She just confessed to me, so uh, I was wondering if you’d be okay with getting her to join us…"

Rage burned in Miyabi’s stomach. Kei was her project. She had worked so hard to make Kei pretty, and now some other sow wants to come and reap up the fruits of her labor? As she glared at Aya, her eyes scanned the other girl up and down. 

Not bad. Maybe she’ll be tasty to eat up. She has that cool but beautiful look, I don’t have anyone like that in my collection yet. It’ll be amusing to see that cool facade break apart as my milk turns her into a slobbering mess. 

Miyabi’s lips curled into a sinister grin that made the hair on the back of Aya’s neck stand up. "Aya, huh. Why don’t you come with us for a second?" She held Kei’s hand and walked towards the emergency staircase that they usually hung out at.

Every instinct inside Aya’s body screamed at her to run away, the primal part of her brain knowing that she was dealing with an apex predator she could never hope to survive. But as she watched Kei walk out of her reach, her heart pounded for her to chase after them. With all the self control of a high school student with ADHD - so, basically, none - she followed them against her better judgement. 

Perhaps because of all the perverse juices that had been spilled and absorbed into it, the emergency staircase had undergone some changes. Although it had been made from cement, the surfaces felt soft and fleshy. The third floor, where Miyabi and Yua had their feedings the most often, had started turning pink and was the most pliable. This was the floor that Miyabi led them to. 

Miyabi sat on the stairway and sat Kei on her lap facing forwards, and told Aya to stand against the wall facing them. When Aya leaned against the wall to look at them, the pink wall stuck to her and kept her immobile. Aya yelped and struggled, but it was futile, the wall clinging to her like gum and snapping her back into place no matter how much she tried to get away. 

"What is this?" Aya whispered, her eyes wide with horror. 

"Forget about that," said Miyabi. "What you should pay attention to is Kei, no?"

Kei craned her neck to look back. "Miyabi, what are you doing?"

"Shh, you’ll enjoy this." Miyabi gently nudged Kei’s face to turn back towards Aya. Miyabi wrapped her arms around Kei’s waist, and kissed the back of Kei’s neck. She started slow, planting light airy kisses at first, then became more forceful as she ran her tongue up and down. She added some bites in between as her hands roamed Kei’s body, one going down to her crotch and the other up to cup her breast. Kei’s erotic moans soon filled the staircase. 

Aya’s eyes froze in shock. Her lips quivered as she whimpered, but the air was so dense with pheromones that she couldn’t resist. She could only stand there, frozen in place, as she watched another girl make out with her crush. 

Miyabi massaged Kei’s breasts through her shirt, taking it slow to torment both Kei and Aya.

"Miyabi, could you please…" Kei moaned. 

"You’re a needy little one aren’t you," Miyabi snickered. She nibbled on Kei’s ear and was rewarded with a cute squeal as Kei involuntarily hunched her shoulders and twitched. "You did put on my uniform after all," she said, making sure that Aya heard the emphasis, "so I guess I should reward you for being a good little girl." 

A burst of pleasure shot up Kei’s spine just from her words. "Miyabi. Miyabi…"

Tears pooled up in Aya’s eyes and ran down her cheeks. "Kei…" she whispered, the yearning clear in her voice. 

Miyabi unbuttoned Kei’s blouse and let it open off to the sides, leaving Kei’s bow like a collar around her neck. She fiddled with Kei’s camisole with one hand, revealing Kei’s large and pretty breasts, while cradling Kei’s head with the other. She turned Kei around to face her and they kissed as Miyabi kept eye contact with Aya. She sent her long tongue down Kei’s throat, causing it to visibly bulge as it was fucked. 

They broke the kiss and Miyabi brought her hands to rub and pinch Kei’s pink nipples. "You want to suck on these too, don’t you?" she asked Aya. Miyabi squeezed, and Kei moaned as milk spurted out from her breasts. 

"What…" Aya asked in a daze even as she kept crying. "How is Kei lactating?"

Miyabi shrugged. She hitched up Kei’s skirt and pulled off Kei’s panties. The site of a cock poking out from a skirt really is the hottest. She playfully stroked Kei’s cute penis, which had become smooth and was an unnatural glossy pink, molding it in her fingers. Her other hand went down to Kei’s ass, and even she was surprised. The rim of Kei’s hole had become soft and puffy, eliciting moans from Kei as she prodded it. Clear slick ran out of it as she played with the entrance. Kei’s ass had become self-lubricating.

Miyabi hiked up her own skirt and panties too, freeing her inhuman cock. Put together, it was clear that she was longer and bigger than Kei. She rubbed her dick between Kei’s ass and against Kei’s balls and dick, slathering it with the slick leaking out. 

"What do you think?" Miyabi asked Aya as she stroked their dicks together. 

Aya didn’t respond. 

Miyabi lifted Kei’s hips with her hands, and lowered Kei’s butt towards her dick. Kei screamed with pleasure as her monster-like penis plunged into the depths, each ridge stimulating Kei’s sphincter as it went in. They rocked and pounded their hips together, the wet sound of naked flesh echoing in the staircase. 

"Oh my god," Kei moaned as Miyabi’s ridges repeatedly rubbed against her prostrate. "It feels so good. I love you Miyabi."

"I love you too, Kei." They kissed again. 

Miyabi shifted Kei to the side so she could suck on Kei’s breast. Kei’s sweet milk was delicious. Looking back at Aya, she had the walls let go. Aya, barely registering in her mind that she was free, still looked at them in a daze. "Come over here and have a taste."

"Huh?" Aya blinked, then realized that she could move her hands. She stepped forward, looking back suspiciously at the wall before looking at them again. "I, what?"

"Come have a taste." Miyabi squeezed Kei’s other boob. "You don’t want Kei’s precious milk to go to waste, do you?"

Aya shivered and she considered running away and crying under a bed, but her lust won out. She lunged forward to grab onto Kei and desperately brought her mouth to Kei’s breast. "Kei…" She wrapped her lips around Kei’s nipple and forcefully sucked, the taste of Kei’s milk setting off fireworks in her brain. Kei’s fluids rushed into her, along with a surge of hormones and parasite pathogens. There was no more escape.

Miyabi and Aya sucked on Kei’s breasts together side by side. A warm connection formed between them from feeding from the same source, and Miyabi gently stroked Aya’s tear-streaked cheeks. Aya, overwhelmed by emotions, squeezed her eyes shut as she was barely able to think anymore. She just kept sucking and crying as Kei and Miyabi caressed and comforted her together. 

After a few minutes, Miyabi pushed Aya away. "Stand up a bit." When Aya crouched over them, she reached her hand under Aya’s skirt and pulled her panties to the side to make way for her pussy.

"What are you- kyaa?!" Aya squeaked. "Wait, I’m a vir-" The air was knocked out of her lungs as she was lowered onto Kei’s cock. She bent her head upwards and panted as she was rocked with pain and pleasure at the same time. 

Kei screamed, overcome with the pleasure of having both sides played with. "This is amazing!" She cupped Aya’s cheeks in her hands and pulled her into a kiss, flicking their tongues between each other’s mouths. 

They pounded together in a pile until Miyabi’s knot expanded in Kei’s butt, causing Kei to orgasm from both ends and shoot her juices up into Aya. Aya shuddered as her own orgasm washed over her in waves, the crests and troughs pulling her brain up and down. Miyabi moaned and spurted her own juices into Kei’s depths. 

They sat there stacked together in a pile, moaning and hugging each other as they came down from their highs, their genitals still stuck inside each other as they bathed in the afterglow.

Their raised heartbeats pounded and throbbed and finally slowed down to a normal pulse. 

Kei was the first to speak. "That’s not fair, I wanted to drink your milk too, Miyabi."

"You still can." Miyabi leaned back against the steps, which due to becoming flesh-like had bent to accommodate her instead of stabbing against her back. She unbuttoned her blouse and unhooked her front-clasp bra out of the way. She had done this enough that she had bought a whole new set of lingerie with front clasps. 

Kei lay down on the fleshy stairway on her right side, cuddling and pressing against her, then began to drink from her breast. Aya stayed back, watching anxiously, until Miyabi motioned for her to come in on the left. Aya imitated Kei’s position and sucked on Miyabi’s left nipple. 

A warm motherly feeling swirled in Miyabi’s chest again as the pleasure of having both of her breasts sucked at the same time filled her. She smiled and patted both of their heads. "Nice to meet you, Aya."

Aya, now one of them, briefly stopped sucking so she could look up at her with puppy eyes. "Nice to meet you, Miyabi-sama."